Frequency distribution invariably complete in all sample media
None known
2. As an Aid to Geological MappingHigh values indicate mafic rocks (in association with Cr, Ni, V etc.) but see 3 below.
3. As a monitor of surficial processesIn association with Fe, Mn may indicate the effects of co-precipitation in soils and stream or lake sediments, and allow the screening of false anomalies of other elements